Granted Patent
Utility
US 5,693,310 · App. 07/614,947
Amide complexes
Inventors:
Heinz Gries, Bernd Raduechel, Hans-Joachim Weinmann, Wolfgang Muetzel, Ulrich Speck
Patented Case
View Patent ↗
Granted: Dec 2, 1997
Filed: Nov 19, 1990
Inventors
Heinz Gries
Bernd Raduechel
Hans-Joachim Weinmann
Wolfgang Muetzel
Ulrich Speck
Assignee (at issue)
SCHERING CORPORATION
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.